---
title: "Restore project captions from the canonical transcript"
method: POST
path: "/projects/{projectId}/captions/hydrate"
tags: ["Captions and Themes"]
---

# Restore project captions from the canonical transcript

`POST /projects/{projectId}/captions/hydrate`

## Request

- Base URL: `https://blitzreels.com/api/v1`
- URL: `https://blitzreels.com/api/v1/projects/{projectId}/captions/hydrate`
- Auth: API key in header `Authorization`

Restore project captions from the canonical transcript.

## Path parameters

- `projectId` string, required

## Request body

- object
  - `asset_id` string, required

## Response `200`

Successful response

- object
  - `success` boolean, required
  - `status` 'hydrated' | 'no_speech', required
  - `project_id` string, required
  - `asset_id` string, required
  - `promoted` boolean, required
  - `caption_count` number, required
  - `captions_added` number, required
  - `deleted_caption_timeline_items` number, required
  - `txid` number, nullable, required

## Other responses

- `400`: Invalid input data
- `401`: Authorization not provided
- `403`: Insufficient access
- `500`: Internal server error

---

[API](https://skmtc.dev/blitzreels/apis/blitzreels-api.md) · [All operations](https://skmtc.dev/blitzreels/apis/blitzreels-api/llms.txt) · [OpenAPI document](https://skmtc.dev/blitzreels/apis/blitzreels-api/revisions/35608b12471d?raw)